Paper-feed attachment for type-writers.



E- VAN NOTE.

PAPER FEED ATTACHMENT FOR TYPE WRITERS.

APPUCATION men mm: 26.1916.

1,298,834. Patented Apr. 1, 1919.

3 S HEET'S SHEET I.

I I U E. VAN NOTE. PAPER FEED ATTACHMENT FOR TYPE WRITERS.

APPLICATION FILED JUNE 26, l9l6.

1,298,834. Patented Apr. 1, 1919.

s smzers-suzn 2.

E. VAN NOTE. PAPER FEED ATTACHMENT FOR TYPE WRITERS.

APPLICATION FILED IUNYE 26.15MB- Patented Apr. 1,1919.

3 SHEETSSHEET 3 fl ng em Q a vv 960 130 WNW moo,

rns PAT EUGENE VAN NOTE, OF TRENTON, NEW JERSEY, ASSIGNOR T UNDEBWOOD TYPE- WRITER COMPANY, OF NEW YORK, N. Y., A CORPORATION OF DELAWARE.

PAPER-FEED ATTACHMENT FOR TYPE-WRITERS.

Specification of Letters Patent.

Patented Apr. 1, 1919.

Application filed June 26, 1916. Serial No. 106,025.

To all whom it may concern:

Be it known that I, EUGENE VAN NOTE, a citizen of the United States, residing at Trenton, in the county of Mercer and State of New Jersey, have invented certain new and useful Improvements in Paper-Feed Attachment for Type-Writers; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains, to make and use the same.

This invention relates to paper feeding devices for typewriter machines and more particularly to attachments for facilitating the recording of invoices 0r bills, which operation is commonly known as condensed charging or billing, although the device may be used equally well for filling in form letters and the like.

The operation termed condensed charging consists in inserting the bill, carbon and record sheet together in the machine, then typewriting and removing the bill, leaving the car Dn and record sheet remaining in the machine. A fresh bill is then inserted and typewritten and removed and so on until the record sheet is filled. It is usual to turn the platen backwardly together with the record sheet and carbon to receive the new bill head, and then to turn the platen forwardly until it is in position to write the first line upon the bill, which first line will properly succeed the lines written before upon the record sheet. To determine how far the platen shall be turned back or forward, it is usual to employ a pair of cooperative line scales adjustable relatively to each other in connection with an index, and this necessitates frequent consultation of the scale and in addition to being a great tax upon the operator, renders mistakes liable.

The main object of this invention is to provide simple and efficient means which permits the platen to be rotated either by the usual line spacing mechanism or the platen knobs, and yet provides for the rotation of the platen either backward or forward at any time desired by manipulating 5 a special lever, the limits of both the backward and forward movement of the platen by the lever being mechanically determined,

and which is also provided with means for varying the back and forth rotation of the platen at will to suit difierent kinds of work.

Another object of the invention is to provide improved means for setting the device for controlling the backward and forward rotation of the platen by means of the lever.

Another object is to provide improved means for connecting the driving member of the mechanism with the driven memberwhereby the operation may be quickly effected and a rigid connection of the parts insured.

Another object is to provide improved means for connecting the actuating lever to the driven member of the, attachment.

Still another object consists in providing 70 a simply constructed and eflicient actuating lever which may be adjusted at any desired point on a disk which it is designed to actuate and by means of which the lever is connected with the member to be driven or actu- 75 ated.

With the foregoing and other objects-in view, which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter clescribed and claimed, it being understood that changes in the preciseembodiment of the invention herein disclosed may be made within the scope of what is claimed without departing from the spirit of the invention.

In the accompanying drawings:

Figure 1 represents a plan view of this improved attachment applied with the parts in position ready for actuation to revolve the platen, the devic being set so as to turn the platen one complete revolution;

Fig. 2 is a side elevation thereof;

Fig. 3 is a central vertical section thereof;

Fig. 4 is a transverse vertical section taken 95 on the line H of Fig. 2;

Fig. 5 is a similar view taken on the line- 5 5 of Fig. 2;

Fig. 6 is a similar view with the handle connecting clutch shown in operative position, one of the clutch members being en-- gaged with its cooperative locking parts and the other shown inoperative, and the spring which holds these clutch members in neutral position being shown in the relation which it assumes relative to the pin which it engages during the clutching operation;

Fig. 7 is a transverse vertical section taken on the line 77 of Fig. 3 with the parts shown in the position they assume before the platen is revolved by the handle member to feed in the paper;

Fig. 8 is a transverse section through the taken on the line 1111 of. Fig. 1 showing the stops on the gear and sleeve in the position shown in Fig. 7

Fig. 12 is a transverse section taken on the line 12-12 of Fig. 3 looking in the direction of the arrows;

Fig. 13 is a detail horizontal section showing the connection of the attachment to the platen frame;

Fig. 14 is a detail sectional view showing the mechanism for holding the clutch members in neutral position and for returning them to said position after they have been actuated; and

Fig. 15 is a detail sectional view through the braking gear. p

In the embodiment illustrated, the usual cylindrical platen 1 of an L. C. Smith typewriter is shown fixed on an axle or shaft 2 journaled in a platen frame 3, the ends of the shaft projecting beyond the platen frame and having finger wheels as 4 fixed thereto and by means of which the platen may be rotated in either direction as is usual in devices of this character.

Fixed on the platen shaft 2 between the right hand finger wheel 4 and the adjacent end of the platen frame 3 is a plate 5 through which the shaft 2 extends and which is secured to the platen frame by bolts 6 having spacing sleeves 6 arranged thereon between the frame and said plate as is shown clearly in Figs. 1 and 13.

This plate 5 has a gear 7 journaled therein, said gear having a hub 8 which extends through an opening in the plate and proj'ects slightly beyond the rear face thereof as is shown clearly in Fig. 3. This gear 7 has a central opening provided on its outer face with a flaring seat 9 which is designed to receive a cone-shaped head 10 carried by a'sleeve 11 which projects through the opening in the gear and its hub and extends some distance beyond the rear face of the plate 5 and is externally threaded throughout the greater portion of its length on the operate with a laterally extending lug 13 carried on the front face of the gear 7 and with a stud 14 carried on the rear face of a disk 15. This disk 15 has a shank or stem shank projects, said sleeve forming a bearing for said shank.

A washer 18 encircles the sleeve 11 at the rear of the plate 5 and is designed to abut against the rear end of the projecting hub 8 of the gear 7 as is shown clearly in Fig. 3 and which operates in connection with the head 10 of the sleeve 11 to clamp said head 10 to the gear 7 so that the sleeve carrying the head will normally turn with said gear. This clamping action is accomplished by means of a ring 19 which encircles the sleeve 11 adjacent the washer 18 and turns loosely thereon and which carries a yoke-shaped clamping member 20 having cams 21 on the free ends of the arms thereof which are designed toengage the rear face of the washer 13 when the yoke is swung outwardly into clamping position as shown in Fig. 3, thereby forcing the Washer toward the plate 5 and drawing the head 10' of the sleeve 11 rearwardly'into the cone-shaped seat of the gear 7 and thereby securely locking said sleeve to said gear. A nut 21 is mounted on the sleeve 11 at the rear of the ring 19" and is adjustable thereon to vary the clamping action of the yoke 20, a lock nut 22 be-' ing provided for holding the nut 21 in adjusted position. 7

From this description it will be obvious that the sleeve 11 carrying the head 10 may be disconnected from the gear 7 to permit it to turn relatively thereto by simply swinging the yoke 20 downwardly, thereby releasing the clamping action of the cams on the ends thereof against the washer l8, and by turning the sleeve 11, the lug 12 thereof may be adjusted at any desired point relatively therewith and project beyond the plane of the outer face of the gear 7 and with which are designed to cooperate a pair of locking pinion-carried rings 25.

dogs 26 which are exactly alike in construction and extend in opposite directions, be-

shaped although they are not necessarily so' shaped but it is important that they taper toward their free ends. The bowls of these levers engage the clutch rings 25 of the pinions 23 and 24, the concaved faces of said bowls being shown engaged with said rings, the curvature of said rings being greater than the longitudinal curvature of said bowls toprovide for a sliding movement of the bowls relatively to the rings. The rear convexed faces of the bowls of these levers are engaged with laterally extending stops 27 disposed adjacent to but spaced from the The pinions and stops may be mounted on the plate 5 in any suitable manner but are here shown mounted in brackets 28 which span the spaces between the stops 27 and the rings 25 and thus prevent lateral movement of the locking; dogs or levers 26.

The dogs 26 which extend in opposite di' rections from opposite sides of the disk 15 between the rings 25 and stops 27 have a peculiar locking engagement with said rings and stops when forced outwardly by the turning of the disk 15, it being obvious that when one of these dogs is in looking engagement with its cofiperating ring and stop, the other dog will be inoperative and loosely disposed between its stop and ring without engaging either. This is owing to the fact that the ends of the dogs which are pivoted to the disk 15 are mounted in alinement'on a chord drawn through the disk so that on the turning of said disk in one direction one of said dogs is projected while the other is retracted a distance sufficient to cause the projected dog to bindingly engage with its ring and stop at diagonally opposite points.

The engaging point between the dog and stop operates as a fulcrum for the lever on the forward swinging of its pivoted end by the turning of the disk 15, while at the same time a wedging action is exerted between the lever or dog and its ring and stop, owing to the tapering of the dog from its outer toward its inner end. The other dog at the opposite side of the disk is then in retracted or neutral position, being out of engagement with both its ring and stop it being understood that this dog will be brought into operative engagement on the turning of the disk in the opposite direction and that the dog shown locked will be disengaged. The peculiar connection of these dogs 26 with the disk 15 and the rings 25 and stops 27 serve to hold the disk against rotation, permitting it to move only a slight distance in either direction sufficient only to permit the projection and retraction of the dogs when a turning force is exerted on said disk, and provide a double brake mechanism.

A gear 31 is loosely mounted on the shaft 2 adjacent the plate 5 and meshes with the gear 7, the proportions of the gear 31 and the gear 7 as shown being about two to one, although obviously these proportions may be varied, and when formed as shown it will be understood that the gear 31 will make two revolutions to one of the gear 7, for a purpose tobe described.

A stud 34 extends laterally from the front face of the plate 5 and carries a coiled spring 35 having crossed laterally extending arms 36 which project .inwardly and between which extends a stud 37 also carried by the plate 5, and which tends to holdsaid spring arms under tension. These arms 36 engage a stud 38 carried by the rear or inner face of the disk 15 and exert their tension to center said disk and to normally hold the dogs 26 in neutral or inoperative position and to return them to this position after they have been actuated for interlockingly engaging This gear 33 meshes with a spring pressed braking or tensioning pinion 39 mounted on the plate 5 as is clearly shown in Figs. 1, 4, 5 and 15, said braking pinion being designed to limit the turning movement of said gear 33 on the shaft 2 and prevent it from spinning, for-a purpose presently to be described.

As shown this pinion is mounted on a screw stud 40 which has a coiled spring 41 arranged thereon between the plate 5 and said pinion, a wear plate 42 being interposed between the pinion and the other end of the spring as is shown clearly in Fig. 15 and comprising a Z-shaped bracket, one end of which is fixed to the plate and the other end is apertured to receive the stud or screw 40 which passes therethrough.

A gear 43 is mounted on the shaft 2 in advance of the gear 33 and in close proximity thereto and has a forwardly extending hub 44 which is secured to the shaft 2 by a pin or other suitable fastening means.

A clutch disk or plate 45 is loosely mounted on the shaft 2 in advance of the gear 43 and abuts against the front end of the hub 44 thereof as is shown clearly in Fig. 3, said hub serving to space said disk and gear a suflicient distance apart to provide for the positioning between them of clutch dogs or looking levers 46 which are similar in construction to the dogs 26 as above described, I

- disk 33, so that they may operate as a unitary structure when turned in one direction or the other, and form a double clutch mechanism.

These dogs 46 which are also shown spoonshaped have their inner ends pivotally mounted on the inner face of the disk in alinement with each other on a chord taken through said disk so that the turning of the disk operates to retract one dog and project the other in the. manner above described, and the dogs hold the disk against turning beyond a predetermined extent.

A pair of pinions 47 and 48 are revolubly mounted on the front face of the gear 33 at diametrically opposite points and mesh with the gear 43 which is fixed to the shaft 2 and carry at their outer faces clutch rings 49 similar to the rings 25 above described and which cooperate with stops 50 arranged adjacent to but spaced from the pinions 47 and 48 and which are here shown in the form of rollers similar to the first set. The pinions and stops are also here shown mounted between brackets 52 and the front face of the gear 33, said brackets spanning the spaces between the stops and rings and holding the dogs 46 against lateral movement and accidental disengagement and forming guides therefor.

A stud 53 extends laterally from the inner face of the disk 45 and the opposite faces thereof are engaged by a pair of spring arms 54 similar to the arms 36 above described and which constitute the ends of a coiled spring 56 which is wound around a stud 57 which projects laterally from the front face of the gear 33, another stud 58 being arranged between said arms adjacent their crossing or points of intersection as shown clearly in Fig. 6. These spring arms exert their tension to hold the disk 45 centered and the dogs 46 thereon in neutral position, and to return them to such .position after they have been actuated.

A stud 59 projects laterally from the outer face of the disk 45 and is designed to be engaged by an actuating device now to be described.

This actuating device comprises a circular plate or disk 60 having a central aperture around which on the inner face of the plate is an annular hub 61, the inner edge of which is spaced from the aperture a distance suflicient to form a seat 62 to receive a bushing 65 which is mounted on the axle 2. The hub 61 has a notch 63 in its periphery which is designed to be engaged by the stud 59 on the disk 45 for locking the plate 60 to said disk. This plate 60 is beveled on its inner face at its periphery as shown at'64 for a purpose to be described.

The bushing 65 has an annular head 66 which fits in the seat 62 of the plate 60 and said bushing projects beyond the outer face of the plate 60 some distance and is exteriorly threaded to'receive a clamping nut 67 which connects a lever 68 to said plate. This lever or crank 68 has an enlarged apertured head 69 which fits loosely on the bushing 65 between the outer face of the plate 60 and the nut 67. The nut 67 is provided on its inner face with a reduced sleeve or collar 70 which is designed to fit within the aperture in the lever head 69 forming a journal for said lever head. This nut also operates when screwed home on the bushing 65 to hold said lever in adjusted position and yet permit it to turn freely relatively to said plate. The free end of the collar engages the outer face of the plate 60 and spaces the inner face of the nut proper from said plate a sufficient distance to permit the lever head 69 to turn freely without binding to provide for the adjustment of the lever relatively to the plate.

Mounted on the lever 68 is a, clamp for adjustably connecting the lever 68 to the plate 60 and this clamp as shown comprises an elongated plate 72 which is arranged on the outer face of the lever 68 and is provided with laterally extending right angularly disposed apertured ears 73 which project beyond the inner face of the lever 68 and be tween which saidlever is designed to'fit. Fulcrumed in these apertured ears 73 is a clamping lever 74, the active inner end of which is beveled on its inner face as shown at 75 and between which and the lever 68 the bevelededge of the plate 60 is designed is swung inwardly toward said lever 68 and thereby force the bifurcated end of the clamping lever 74 outward and its beveled biting end inward and thus lockin the lever 68 to the plate 60. The cam lever 6 is preferably provided at its free outer end with a laterally extending knob 78 which projects beyond one side edge of the lever 68 in convenient position for grasping by the operator to swing said cam lever forward for disengaging the actuating lever 68 from the plate 60 when it is desired to adjust it in relation to said plate. The actuating lever 68 is also shown provided with'a hand grip 68'.

From the above description it will be obvious that the lever 68 which is designed for turning the plate 60 may be positioned at any point on the periphery of the plate by simply swinging the cam lever 76 forward, thereby releasing the clamping lever 74 and permitting the lever 68' to be turned to the desired point, when an upward swing of the cam lever 76 will lockingly engage the lever 68 to the plate 60 by means of the clamping engagement of the beveled end 75 of the lever 74 as above described.

From the above description it will also be understood that the tightening of the nut 67 on the bushing 65 will cause the head 66 of said bushing to b-indingly engage the seat 62 of the plate 60 and thereby securely unite the bushing and plate and form a substantially unitary structure so that when the lever 68 is turned the plate 60 and bushing 65 will be turned as a single unit therewith and by means of the connection between said plate hub and the disk 45 will operate to turn the disk 45 and thereby project one of the lock.- ing dogs 46 and cause it to grippingly engage its cooperating clutch ring and stop and thereby unite the fixed gear 43 with the gear 33 so that when the lever 68 is turned in one direction or the other the gear 33 will be locked to the gear 43 carried by the shaft and turn as a, unitary member therewith, turning the shaft 2 and the platen carried thereby said lever 68 thus serving as a driver for rotating the platen as well as to turn the gear 7 carried by the plate 5 through the gear 31. This turning of the gear 7 will also operate to turn the sleeve 11 and bring either the lug 13 carried by the gear 7 or the lug 12 carried by the head 10 of the sleeve 11 into locking engagement with the inwardly projecting stud 14 on the disk 15 according to the direction in which the gear 7 is turned, and thus lock the gear and disk 15 together so that on the further turning of the platen by lever 68 and consequently of the gear 7, the disk 15 will also be turned and project one or the other of its dogs 26, causing it to move obliquely between its coiiperating ring and stop and lockingly engage said members at diagonally opposite points, thereby rigidly connect ng the disk 15, gear 7, and plate 5 operating as a brake to prevent further turning of gear 31, and the intermediate members between it and shaft 2 thereby preventing the further rotation of said shaft 2 and the platen 1 carried thereby. The platen may be turned in the opposite direction by reversing the direction of movement of the lever 68 which will retract the dog 46 on disk45 which was before projected and proj ect the other dog 46 to connect the disk 45 with the gears 43 and 33 as a unit and through them and gear 31, turn gear 7 in the opposite direction until one of the stops 12 or 13 as the case may be engages the pin 14 on disk 15 and connects said disk 15 and gear 7. The further turning of lever 68 will cause the dog 26 before projected to be retracted and the other clutch dog 46 to be projected into locking engagement with its clutch ring and stop and thus unite said lever swung back to initial position.

members rigidly to plate 5 and prevent further turning of the shaft 2 and platen 1 in this direction.

From the above description it will be obvious that the driving connection from the platen 1 to the spacing gear 7 is through the gear 43 fixed to the shaft 2, and rigidly connected to gear 33 by the clutch mechanism carried by gear 33 and disk 45 when the actuating lever 68 is operated, the hub of said gear 33 being fixed togear 31 which latter meshes with and drives gear 7.

-It will thus be understood that the extent of the turning movement of said platen 1 by this device is controlled by the adjustment of the lugs 12 and 13 on the sleeve 11 and gear 7 respectively relative to each other. When these lugs are adjusted at diametrically opposite points as shown in the accompanying drawings, the shaft 2 may be turned a complete revolution or substantially a complete revolution on the turning of the lever 68 in either direction, the limit of said turning movement in either direction being controlled by one of these stops 12 or 13 engaging with the stud 14 on the disk 15 whereby said disk is turned sufliciently to project one or the other of its clutch dogs 26 into locking engagement with its cooperating ring and stop and thus lock the platen against further turning by said lever.

When the two stops 12 and 13 are positioned in contact with each other or as close together as they can be set, the shaft 2 will be permitted to turn two complete revolutions minus the thickness of thetwo steps 12 and 13 which is owing to the fact that the gear 7 is twice the size of its coiiperating gear 31.

In the use of this device the stops 12 and 13 carried respectively by the sleeve head 10 and the gear 7 are adjusted relatively to each other according to the extent it is desired to rotate the platen 1 by this device which is determined by-the margin it is desired to leave at the top of the sheet to be written or the distance between the top edge of the sheet and a predetermined point on the sheet where it is desired to begin writing. For instance when it is desired to fill in dates or other indicia on form letters, the stops 12 and 13 are set so that when the letter head is positioned as shown in Fig. 8 and the lever 68 swung forwardly to the limit of its movement, the platen will be turned a distance just sufli-cient to position the sheet S carried thereby with the space to be filled in at the writing point, and the date or other matter may then be written in and the sheet removed and the A similar sheet is then inserted and the filling in operation repeated and the sheet .removed. Thus any number of similar sheets sitioned to receive the data to be filled in.

To set the device for use either in filling in blanks in form letters or for positioning a letter head or other paper at a desired point, the sheet S is positioned as shown in Fig. 8 between the platen 1 and the paper shelf and the platen with the sheet S is turned forwardly until the point desired to be'written on on the sheet S appears at the writing point of the machine that is just above the scale. Then the stop 12 is engaged with the pin on disk 15 by first turning down the cam yoke 20 to release the clamping action of the washer 18 on the hub of gear 7 and thereby disconnecting the sleeve head 10 from said gear and permitting the sleeve to turn freely in the gear hub. This sleeveis then turned until its stop 12 contacts with pin 14. 1 After these stops have been so adjusted, the sleeve and gear are locked together by swinging the yoke outward into locking position as shown in Figs. 1, 2 and 3. The actuating lever 68 is then adjusted on the disk 60 to so position it as to prevent its engagement with the platen frame on the turning thereof and the device is ready for use.

It will thus be seen that an important feature of the invention resides in the fact that the locking elements or stops 12, 13 and 14 are all secured to relatively moving members so that their positions are not fixed, such as is produced when a pin is used in connection with a stationary disk, but all have some movement during the operation.

All that is necessary when the device is once set for filling in letter heads or form letters, the parts being in the position shown in Figs. 1 and 2, is to insert a sheet S between the platen 1 and paper shelf S as shown in Fig. 8 and then swing the lever 68 forward as far as it will go which will be until it is arrested by the engagement of stop 13 on gear 7 with the pin 14 on disk 15 as shown in Fig. 9, and the device is then ready for writing. After the sheet has been written or filledin it may be removed by turning the platen by means of the finger wheel 4 or by pulling it out in the usual manner and after swinging lever back to initial position another sheet is inserted in the manner above described; hence by simplyv swinging the lever 68 back and'forth, the sheets are properly positioned for writing or filling in without taxing either the mind or the eyes of the operator and preventing all possibility of mistakes.

The brake gear or pinion 39 held frictionally between the head of the stud 40 and the bracket 42 and meshing with gear 33 prevents said gear from spinning when the clutch dogs 46 are engaged with their cooperating members on said gear 33, and thus adapts said members to quickly engage and the actuating lever 68 to quickly pick up gear 33. and lock it to gear 43 and to turn with said gears as a unitary structure and thus rotate the platen until stopped by the locking engagement of one of the braking dogs 26 with its cooperating clutch ring 25 and stop 27 which is produced by the engagement of one of the movable stops 12 or 13 engaging the stationary stop 14 on disk 15 as hereinbefore described, according to the direction in which the lever 68 is swung.

From the above description it will be obvious that the shaft 2 may be turned independently of the attachment just described by operating a finger wheel at either end of said shaft, the fixed gear 43 spinning freely during this turning of the shaft between the pinions carried by the gear 33 without in any way affecting the other parts of the attachment, or being afiected by them, and when desired, the platen may be operated by the swinging of the lever 68 either backward or forward according to the direction the platen is to be rotated, the extent of movement of the platen by said lever being controlled by the adjustment of the stops 12 and 13 relatively to each other, the stop 12 engaging pin 14 when the lever is turned toward the rear and stop 13 when the direction of the lever is reversed.

In explanation of some of the claims, it is pointed out that the crank or handle 68, which is normally disconnected from the platen, may operate a device (one of the members 46) to turn the platen in one direction only, while a separate device (consisting of the other member 46) is operable by said handle during the return stroke of the latter, and that said separate device rotates the platen only in the return direction; that said crank 68, which turns about the platen axis, may be turned through more than an entire revolution, and may drive the platen through more than an entire revolution; and that by means of the movement-reducing gearing 7, 31, which is driven with the platen, the stop mechanism is brought into play, the gear 7 being of substantially larger dlameter than the pinion 31, and permitting more than an entire revolution of 31'before the parts are brought to rest by the stops, said stops preferably determining the stations or stopping points of the platen for both the forward and backward strokes thereof. One of the members 46 is active during the forward stroke of the driver and inactive during a return stroke, while the other member 46 is active during the return stroke and inactive during the forward stroke. In effecting relative adjustment between the stops 12, 13 -and 14, it may sometimes be found that the crank 68, when in normal position, would, in some machines, collide with a part of the framework of the typewriter during the progress of the typewriter carriage; and to avoid such contingency, the crank is made adjustable so that it can be reset by means of the devices 74, 76, to accommodate any normal position of the driver 60 determined by said stops, the handle 68 being se-ttable to any angular position with reference to said driver or part 60.

I claim as my invention:

1. In a typewriting machine the combination with the carriage having a platen, its shaft and the usual turning knob, of mechanism for controlling the rotation of the platen including a member fixed to rotate with the shaft, a lever normally free to rotate around said shaft, a normally inactive clutch mechanism interposed between the lever and said member to lock said member to turn with the lever when the latter is moved in one direction, a second clutch mechanism to lock said member to turn with the lever when the latter is turned in the opposite direction, and a normally inactive double brake mechanism interposedbetween said member and the carriage, said brake mechanism permitting a predetermined degree of movement of said member and shaft under the action of the lever in either direction before becoming active.

2. In a typewriting machine the combination with the carriage having a platen, its shaft and the usual turning knob, of mechanism for controlling the rotation of the platen including a member fixed to rotate with the shaft, a second member loosely mounted to rotate on the shaft, a lever normally free to rotate around said shaft, a double clutch mechanism between said lever and said fixed member including clutch elements carried by the second member and engaging said first member, pivotally mounted dogs carried by said lever and operable on the turning of said lever in either direction to engage the clutch elements of said second member and thereby lock said lever to said fixed member, and a normally inactive double brake mechanism interposed between said fixed member and the carriage, said brake mechanism permitting a predetermined degree of movement of said member and shaft under the action of the lever in either direction before becoming active.

3. In a typewriting machine the combination with the carriage having a platen, its shaft and the usual turning knob, of mechanism for controlling the rotation of th platen including a gear fixed to rotate with the shaft, a second member loosely mounted on the shaft,a lever normally free to rotate around said shaft, a double clutch mechanism between said lever and said fixed gear including rotatable pinions carried by said second member and meshing with said fixed gear, said pinions having clutch faces, pivotally mounted clutch dogs carried by the lever and operable on the turning of the lever in either direction to engage the clutch faces of said pinions and thereby lock said lever to said fixed member, and a normally inactive double brake mechanism interposed between said fixed gear and the carriage, said brake mechanism permitting a predetermined degree of movement of said gear and shaft under the action of the lever in either direction before becoming active.

4:. In a typewriting machine the combination with the carriage having a platen, its shaft and the usual turning knob, of mechanism for controlling the rotation of the platen including a gear fixed to rotate with the shaft, a second member loosely mounted on the shaft, a lever normally free to rotate around said shaft, a double clutch mechanism between said lever and said fixed gear including rotatable pinions carried by said second member and meshing with said fixed gear, said pinions having clutch faces, pivotally mounted clutch dogs carried by the lever and operable on the turning of the lever in either direction to engage the clutch faces of said pinions and thereby lock said lever to said fixed member, means normally holding said clutch dogs in neutral position, and a double brake mechanism interposed between said fixed gear and the carriage and normally inactive, said brake mechanism permitting a predetermined degree of movement of said fixed gear and shaft under the action of the lever in either direction before becoming active.

5. In a typewriting machine the combination with the carriage having a platen, shaft and the usual turning knob of mechanism for controlling the rotation of the platen including a gear fixed to rotate with said shaft, a lever normally free to rotate around said shaft, a member loosely mounted on the shaft, oppositely disposed disks carried by said loose member and meshing with said gear, clutch faces carried by said pinions, stops arranged on said loose member adjacent said pinionsbut spaced therefrom, pivotally mounted wedge-shaped clutch dogs carried by said lever with their tapered ends disposed between the clutch faces of said pinions and said stops and operable by the turning of the lever in either direction to engage the clutch faces of said pinions and thereby lock said lever to said gear, and normally inactive double brake mechanism interposed between said fixed gear and the carriage, said brake mechanism permitting a predetermined movement of said gear and shaft under action of the lever in either direction before becoming active.

6. In a typewriting machine the combination with the carriage having a platen, its

shaft and the usual turning knob, of mecha, nism for controlling the rotation of the platen including a member fixed to rotate with the shaft, a second member loosely mounted on the shaft, a lever mounted concentrically with the shaft to rotate around it, a normally inactive clutch mechanism interposed between said lever and said fixed member operative to lock said lever to said fixed member when the lever is moved in either direction, braking means engaging said second member to exert a dragging action thereon and a normally inactive double brake mechanism interposed between the carriage and said first mentioned fixed member, said brake mechanism becoming active after the shaft is moved a predetermined distance in either direction under action of the lever to prevent further rotation of the shaft.

7. In a typewriting machine the combination with the carriage having a platen, its

7 shaft and the usual turning knob, of mechanism for controlling the rotation of the platen including a member fixed to rotate with the shaft, a lever normally free to rotate around said shaft, a double clutch mechanism interposed between the lever and said member and normally inactive, said clutch mechanism locking said member to turn with the lever when the latter is moved in either direction, a double brake mechanism interposed between said member and the carriage and normally inactive, said brake mechanism including a gear carried by said carriage, pinions carried by the carriage and meshing with said gear, stops carried by the carriage adjacent said. pinions and spaced therefrom, means connecting said gear with said fixed member, said pinions having clutch faces, pivotally mounted dogs carried by said carriage and'positioned to engage the clutch faces of said pinions, stops movable. toward and away from each other for controlling the engagement of said dogs with said clutch faces, and means for retaining said stops in adjusted position to control the predetermined degree of movement of the shaft and said fixed member in either direction under the action of said lever.

8. In a typewriting machine the comblnation with the carriage having a platen, its shaft and-the usual turning knob, of mechanism for controlling the rotation of the platen including a member fixed to rotate with the shaft, a lever normally free to rotate around said shaft, a double clutch mechanism interposed between the lever and said member and normally inactive, said clutch mechanism locking said member to turn with the lever when the latter is moved in either direction, a double brake mechanism interposed between said member and the carriage and normally lnactlve, sald brake mechanism including stops one of which is movable toward and away from the other, and means for retaining said stops in adjusted position to control the predetermined degree of movement of the shaft and said member in either direction under the action of said lever.

9. In a typewriting machine the combination with the carriage having a platen, its shaft and the usual turning knob, of mechanism for controlling the rotation of the platen including a member fixed to rotate with the shaft, a lever normally free to rotate around said shaft, a double'clutch mechanism interposed between the lever and said member and normally inactive, said clutch mechanism locking said member to turn with the lever when the latter is moved in either d1rect1on, a double brake mechanism interposed between said member and the carriage and normally inactive in a circular path toward and away from each other, and means for retaining said stops in adjusted position to control the predetermined degree of movement of the shaft and said member in either direction under the action of said lever.

10. In a typewriting machine the combination with the carriage having a platen,

clutch mechanism locking said member to,

turn with the lever when the latter is moved in either direction, a double brake mechanism interposed between said member and the carriage and normally inactive, said brake mechanism including stops one of which is movable toward and away from the other, and cam controlled means for retaining said stops in adjusted position to control the predetermined degree of movement of the shaft and said member in either direction under the action of said lever.

11. In a typewriting machine the combination with the carriage having a platen, its shaft and the usual turning knob, of mechanism for controlling the rotation of the platen including a member fixed to rotate with the shaft, a second member loosely mounted on the shaft, a lever mounted concentrically with the shaft to rotate around it, means for adjustably fixing the lever to turn with said second member, a normally inactive double clutch mechanism interposed between said members operative to lock said lever to said first mentioned fixed member when the lever is moved in either direction simultaneously with said second member, and a normally inactive double brake mechanism interposed between the carriage and said first mentioned fixed mem her, said brake mechanism becoming active after the shaft has moved a predetermined distance in either direction under the action of the lever to stop further rotation of the shaft.

12. The combination of a driven member, a driving member therefor, means for looking the driven member against movement comprising a movable element connected to move with said driven member, a stop disposed adjacent said movable element but spaced therefrom, a disk having a lever pivoted at one end thereto, said lever having its other end tapered and extending obliquely between said movable element and stop for engaging them at different distances from its fulcrum, and 'means operable by said driving member for projecting said lever into locking engagement with said stop and movable element and thereby looking said movable member and the driven member connected therewith against turning.

13. The combination of a driven gear, a pinion meshing therewith, a support for said pinion, a clutch ring fixed to said pinion, a stop arranged on said support adjacent said ring but spaced therefrom, a dog movable between said ring and stop, and means for projecting said dog at an oblique angle between said members whereby it engages them at diagonally opposite points and thereby locks said pinion and the gear meshing therewith againt movement relatively to each other and thereby fixes said gear to said support, and meansfor returning said dog to neutral position on the release of said projecting means.

14. The combination with a driven gear, pinions meshing therewith .at diametrically opposite points, a support for said pinions, a disk mounted concentric with the axis of said gear, dogs pivoted at one end to said disk in alinement with each other on a chord of said disk, said dogs tapering toward their free ends and curved longitudinally, clutch rings fixed to said pinions, stops carried by said support adjacent tobut spaced from said rings, said dogs being alternately projectable between said rings and stops on the turning of the disk in opposite directions, said stops engaging the dogs at points in advance of the engagement thereof by said rings, whereby the pinion so engaged and the gear is locked against turning.

15. The combinatlon of a driven shaft, 2. fixed gear carried thereby, a member revolubly mounted on said shaft on one side of said gear, pinions carried by said member and meshing with said I gear, an actuating plate loosely mounted on said shaft on the other side of said ear, and cooperating clutch members carried by said plate and pinions operable on the turning of said plate to lock said actuating plate to said gear,

and means for limiting the turning of said gear in opposite directions during its 0on nection with its actuating means.

'16. The combination of a shaft, a lever fulcrumed concentrically on the shaft and capable of moving freely around the same, a disk fixed to the shaft, a friction clamping lever fulcrumed between its ends on the first mentioned lever having one end to frictionally engage said disk, and a cam fulcrumed on the other end of said clamping lever and operative against the first mentioned lever.

17. The combination of a shaft, alever fulcrumed concentrically on the shaft and capable of moving freely around the same, a disk fixed to the shaft, said disk having a beveled periphery, a clamping lever fulcrumed between its ends on the first mentioned lever and having one end to engage said beveled edge of the disk, and means for actuating the other end of said clamping lever to hold it in active position.

18. A typewriter attachment of the class described including stop mechanism comprising a supporting plate, a gear wheel having a hub mounted to rotate in said plate, a sleeve extending through said hub and rotatable therein, a head on said sleeve engaging the outer face of said gear, stops carried by said head and gear and disposed in the same plane, and a cam clamping device engaging said gear hub for locking the gearand sleeve head together to form a substantially unitary, member.

19. In a device of the class described, the combination with stop controlled mechanism; of a supporting plate, a stop carrying disk mounted on one face of said plate and having a hub extending therethrough and projecting beyond theother face thereof, a sleeve mounted to rotate in said hub and having ahead engaging the outer face of said disk and provided with a stop, a washer engaging the free end, of said hub, a clamping ring loosely mounted on said sleeve, stop means on said sleeve for engagement by said collar, and a yoke eccentrically pivoted on said collar with its ends adapted to engage said washer and clamp said disk and sleeve head-rigidly together.

20. The combination with a revoluble platen, of a handle, means to connect the handle to the platen to drive the same through more than an entire revolution, said handle mounted to turn around the platen axis, movement-reducing gearing connected to the platen, and a stop mechanism connected to said movement-reducing gearing to permit more than an entire revo lution of the platen between stations determined by the stop mechanism.

21. The combination with a revoluble platen, of a handle, means to connectthe handle to the platen vto drive the same through more than an entire revolution, said handle mounted to turn around the platen axis, a pinion connected to said platen, a gear of substantially larger diameter meshing with said pinion, and platen-stop. devices cooperating with said ear.

22. The Combination with a revoluble platen, of a handle, means to. connect the handle to the platen to drive the same through more than an entire revolution, said handle mounted to turn around the platen axis; a pinion connected to said platen, a gear of substantially larger diameter meshing with said pinion, and platen-stop devices cooperating with said gear to limlt both forward and backward strokes of the plat n.-

2 3. The combination with a revoluble platenand a crank or handle mounted to turn around theplaten axis and normallyv disconnected from the platen, of a device to conmet the crank to drive the, platen, during one stroke of the crank, but ineflectiveduring the, returnjstroke of the crank, movement-reducing gearing connected to. the platen and a stop, device cooperating with said movement-reducinggearing;

QaQThe combination with arevoluble platen and a crank or handle mounted to turn aroundthe platen axisllormally disconnected; from the platen, of, platen-driving devices, one to connect the handle. to the platen only at the forward, stroke of the handle, and the otherto connect the, handle to the platen only at the return stroke of the handle, a pinion connected to said platen, agear. of substantially greater di: ameter connected to the pinion, and stop devicescooperating with said, gear to limit the opposite strokes of the plateneffectedby said handle,

25. Th'e combination with a, revoluble platen and a crank mounted to turn about the platen axis and normally disconnected from the platen, ofplaten-driying devices operable by said crank to drive the platen in opposite directions, stop, mechanism. includ: ing relatively-adjustable stop members,- oer: tain of said stop members connected to be driven with said platen, andmeans for effecting relativerotative adjustment between said crank and, said platen-dl'iving devices.

26. The combination, with a revoluble platen and acrank mounted. to turn about the platen axis andv normally, disconnected from, the platen, of platenedriving devices operable by saidcrallk, to, drive; the platen in opposite directions, movement-reducing gearin connected to be driven with said platen .y, said driving devices stopdcvices coiiperating with, said movement-reducing gearing and including. relatively; adjustable stops, and meansto permits relative rotative adjustment. betwe.en. said, crank and said platen-driving devices. r I

27.,The combination withv a, vrevoluble platen, of a handle, means to connect the handle to the platen to drive the same through more than an entire revolutiom saigl handle mounted to turn around the platen axis, movement-reducing gearing connected to the platen, and an adjustable stop mechanism connected to said. movement-reducing gearing to permit more than; an entire revolution of the platen between stations deter? mined, by the stop mechanism, means being provided to permit relative rotative adjustment between said handle and said platendriving devices. I t v v 28. The combinationwwith a. revoluble platen anda crank or handle .mountedjto, turn around theplaten axis normally dis connected] from the platen, of platen-driving devices, one to connect the handle to the platen only. at the forward stroke of the handle, and theother toconnect thehandle to .the platen only at the return strokeof the handle, a pinionv connected to said platen, a gear of substantially greater diameter connected to,the pinion, and relatively adjustable stop,deyices cooperating with said gear tolimit the oppositestrokes of the platen effected by said.- handle, means being provided to, permit relative; rotatiyeiadjnsb ment between said handle and said platendriving devices I a 29. The combination with revoluble platen, a= platen frame, and an axle forthe platen,of ahandlejournaled on; said axle, a geanfast on said axle, ahclutch between said handle and said gear? adapted to seize the gearupon the first operation of the bandle, and attain of; gears-extending from said clutch to, the; platen, frame comprising stops adaptedtobevaniably set to variably lliinit thfi rotation ofthe platenby'the-hana, c 30; The combination, with a platen, a platen frame, and an, axle, of; a handle journaled onttheaxle', a gear,also journaled on the axle,, a! second gear" fast on,- the, axle meshing with, a third gear; journaled on, the first gear, means operated by the initial movement of; the handle for locking the first and, third gears. together, so that they turn as a unitaandi-carr y the second g'ean with them, and, amovement contnollingg device gearedto-thethirdgoa s a 31. t The -combination'with; aplaten and; an @Kil? the efor, f a v handle journaled' on. the axle, a gear fast onathezaxle, a device-v also jonrnaledontthe axle, a; second gear journaledlon said devicemeshingwith the first,- named gear, and meansfor locking the two gears together by-the initial movement of the handleto enable the handletoTturnthe platen. A r

32.. The c combination withia platen-andan axle therefonof, a handle'iournaled onj'tlie axle, a gear fast on thegaxle' a' device-also 1 (ill- 1 9M 5911 0.1 the a le a;- secondi gear; ouraxle, a gear also journaled on the axle, a

second gear fast on the axle meshing with a third gear journaled on the first gear, means operated by the initial movement of the handle for locking the first and third gears together, so that they turn as a unit and carry the second gear with them, and a movement-controlling device geared to the third gear, comprising stop devices on the platen frame adapted to be set relatively to each other to limit the movement of the platen backward and forward.

34. The combination with a revoluble platen, of a handle, means to connect the handle to the platen to drive the same through more than an entire revolution, said handle mounted to turn around the platen axis, movement-reducing gearing connected to the platen, a stop mechanism connected to said movement-reducing gearing to permit more than an entire revolution of the platen between stations determined by the stop mechanism, and a second means to connect the handle to the platen to enable the handle to drive the platen backwardly until arrested by the stop mechanlsm.

35. The combination with a revoluble platen, of a handle, means to connect the handle to the platen to drive the same through more than an entire revolution, said handle mounted to turn around the platen axis, a pinion connected to said platen, a gear of substantially larger diameter meshing with said pinion, platen-stop devices cooperating with said gear, and a second means to connect the handle to the platen to enable the handle to drive the platen backwardly until arrested by the stop devlces.

36. The combination with a platen and a platen frame, of an axle for the platen, a gear journaled in said frame comprising a lug, devices settable on said frame for engaging said lug to limit the travel of the gear, a second gear journaled on the platen axle and meshing with said firstnamed gear, and means for locking said last-named gear to the platen axle, so that the devices effective on the first-named gear will limit the rotation of the platen.

37. The combination with a platen and a platen frame, of an axle for the platen, a gear journaled in said frame comprising a lug, devices settable on said frame for engaging said lug to limit the travel of the gear, a second gear journaled on the platen axle and meshing with said first-named gear, a handle for locking said second gear to the platen axle to rotate the platen, a clutch having lost-motion by which the handle rotates the platen forwardly, and a second clutch having lost-motion for rotating the platen backwardly by the handle.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

EUGENE VAN NOTE. Witnesses:

WILLIs P. BAINBRIDGE, LAURA E. ATKINSON.

Copies of this patent may be obtained for five cents each, by addressing the Gommissioner of Patents, Washington, D. G. 

